Can I use FMOD (Studio) on Android in August 2013?
If not, is is possible to export the project from FMOD Studio to FMOD Ex engine?
Otherwise, I guess the only alternative is to recreate the sound-files in FMOD Designer en hook it up to the FMOD EX library.

FMOD Studio Android by August sounds very achievable, I am aiming to have Android be our next supported platform on the website.
It’s not possible to export from FMOD Studio to FMOD Designer, but it sounds like this won’t be an issue for you, we’ll have Android ready for you by then.